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- Fixes #981
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91 changes: 91 additions & 0 deletions
91
implementation/src/main/java/io/smallrye/config/SmallRyeSubsetConfig.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| package io.smallrye.config; | ||
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| import org.eclipse.microprofile.config.Config; | ||
| import org.eclipse.microprofile.config.ConfigValue; | ||
| import org.eclipse.microprofile.config.spi.ConfigSource; | ||
| import org.eclipse.microprofile.config.spi.Converter; | ||
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| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.StreamSupport; | ||
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| /** | ||
| * @author George Gastaldi | ||
| */ | ||
| public class SmallRyeSubsetConfig implements Config { | ||
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| private final String prefix; | ||
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| private final Config delegate; | ||
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| public SmallRyeSubsetConfig(String prefix, Config delegate) { | ||
| this.prefix = prefix; | ||
| this.delegate = delegate; | ||
| } | ||
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| @Override | ||
| public <T> T getValue(String propertyName, Class<T> propertyType) { | ||
| return delegate.getValue(toSubsetPropertyName(propertyName), propertyType); | ||
| } | ||
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| @Override | ||
| public ConfigValue getConfigValue(String propertyName) { | ||
| return delegate.getConfigValue(toSubsetPropertyName(propertyName)); | ||
| } | ||
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| @Override | ||
| public <T> List<T> getValues(String propertyName, Class<T> propertyType) { | ||
| return delegate.getValues(toSubsetPropertyName(propertyName), propertyType); | ||
| } | ||
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| @Override | ||
| public <T> Optional<T> getOptionalValue(String propertyName, Class<T> propertyType) { | ||
| return delegate.getOptionalValue(toSubsetPropertyName(propertyName), propertyType); | ||
| } | ||
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| @Override | ||
| public <T> Optional<List<T>> getOptionalValues(String propertyName, Class<T> propertyType) { | ||
| return delegate.getOptionalValues(toSubsetPropertyName(propertyName), propertyType); | ||
| } | ||
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| @Override | ||
| public Iterable<String> getPropertyNames() { | ||
| return StreamSupport.stream(delegate.getPropertyNames().spliterator(), false) | ||
| .map(this::chopSubsetPropertyName) | ||
| .collect(Collectors.toSet()); | ||
| } | ||
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| @Override | ||
| public Iterable<ConfigSource> getConfigSources() { | ||
| return delegate.getConfigSources(); | ||
| } | ||
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| @Override | ||
| public <T> Optional<Converter<T>> getConverter(Class<T> forType) { | ||
| return delegate.getConverter(forType); | ||
| } | ||
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| @Override | ||
| public <T> T unwrap(Class<T> type) { | ||
| return delegate.unwrap(type); | ||
| } | ||
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| private String toSubsetPropertyName(String propertyName) { | ||
| if (propertyName.isBlank()) { | ||
| return prefix; | ||
| } else { | ||
| return prefix + "." + propertyName; | ||
| } | ||
| } | ||
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| private String chopSubsetPropertyName(String propertyName) { | ||
| if (propertyName.equalsIgnoreCase(prefix)) { | ||
| return ""; | ||
| } else if (propertyName.startsWith(prefix)) { | ||
| return propertyName.substring(prefix.length() + 1); | ||
| } else { | ||
| return propertyName; | ||
| } | ||
| } | ||
| } |
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